Trolley-hanger.



G. B. DUSINBERRE. TROLLEY HANGER.

APPLICATION FILED DEG. 9, 1907.

931,398. Patented Aug. 17, 1909.

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same members engage both the messenger wire and the trolley wire, Fig. 3is'a detail hanger which is adapted for double catenary bases of theteeth, as indicated at 10. Thus, .when the two rods 6 and 7 are broughttobolt 11, and the same bolt also is preferably UNITED STATES. ri lgrnnrOFFICE.

GEORGE B. DUSINBERRE, OF CLEVELAND, OHIO, ASSIGNOR TO WESTINGHOUSEELECTRIC MANUFACTURING (-OMPANY, A CORPORATION OF PENNSYLVANIA'.

TROLLEY-HANGER.

Specification of Letters Patent.

Patented Aug. 17, 1909.

Application filed December 9, 1907. Serial No. 405,691.

To all whom it may concern:

Be it known that I, GEORGE B. DUSIN- BERRE, a citizen of the UnitedStates, residing at Cleveland, in the State of Ohio, have inventedcertain new and useful Im rove- 3 ments in Trolley-Hangers, of which t efollowing is a specification.

My invention relates to hangers for suspending trolley wires frommessenger wires or cables, and its primary object is to simplify theconstruction and provide a single clamp ing means for fastenmg thehanger to the messenger wire or cable and to the trolley wire.

In the accom anying drawing, Figures 1 and 2 are side e evations, atright angles to each other, of a preferred form of clamp and hanger, inwhich the parts which engage the messenger wire or cable are interlacedteeth. Fig. 1 is a cross section of the hanger rods shown Figs. 1 and 2.Figs. 3 and 4 are side elevations corresponding to Figs. 1 and 2 butillustrating a modified form in which the View of a modification of theupper ends of the hanger rods, and Fig. 5 shows a form or construction.

In order to secure safety and convenience in handling, it is desirablethat a single fastening means should attach the hanger parts together,and that there should be no danger of accidental displacement of thesaid parts.

In Figs. 1 and 2, the single messenger wire 5 is shown gripped by curvedjaw teeth 8 and 9 which are formed on the top of a hanger composed ofthe two rods 6 and 7. The jaw teeth 8 and 9 are preferably made exactlyalike in the two members and are interlaced to grip the wire 5, the saidmembers being fulcrumeddirectly upon each other at the gether, the wire5 is gripped with a ve y strong leverage and a very secure hold isattaine Obviously, it is impossible to detach the hanger from the wire 5without raising the rods 6 and 7 to a horizontal position, whichcould'not occur accidentally,- even if no fastening device wereemployed.

To further secure the rip on the messenger wire, the suspension rods 6and 7 are preferably held together by some means, such as a i utilizedto secure together the jaw members 1 2 and 12 of a trolley wire clamp;The arms 6 and 7 preferably have some resiliency, and

may also conveniently be formed of the cross-section shown in Fig. 1 ain order to reduce lateral wind stress as much as possible.

In the short form of hanger shown in Figs. 3 and 4, the rods 13 and 14'are provided, at their respective ends, with integral gripping devicesfor the messenger wire and the trolley wire. The teeth of the grippingjaws 16 are preferably interlaced, but the opposing teeth are notcrossed and they may be so disposed as to allow of lateral play of thehanger. The lower ends of the arms 13 and 14 are provided with crossedinterlacing teeth 17 to engage the trolley wire 19 and are fulcrumedupon each other, as indicated at 18. By this construction, I get anextremely secure and strong hold upon the trolley wire by utilizing theends of the hanger rods as means for attaching the hanger to themessenger wire and as a trolley wire clamp. Obviously, the play of therods 13 and 14 is sufficient to permit the trolley wire clamp to operateand still sufficiently insure an efficient hold upon the messenger wireat all times, any suitable means, such as a bolt 15, being employed forholding the -rods together.

In Fig. 5 is shown a modification for use in the double catenaryconstruction, wherein all three of the arms 20, 21 and 22 are heldtogether by one fastening device 23, which may also hold the trolleyclamp 24, the jaws 25 at the messenger wire being as indicated in Fi 1.

It will be observed that in each of the described structures thegripping jaws for the trolley wire and the messenger wire mutuallysupport each other against any possibility of removal. In the form shownin Fig. 3, the jaws may be modified in form so that the mere weight ofthe trolley and hanger will prevent thepossibility of the device comingoff the messenger wire, as is illustrated, for example, in Fig. 3

Other uses and advantages of the device will readily occur to thosefamiliar with the art.

I claim as my invention 1. A trolley wire hanger comprising a clamp forthe trolley wire and a gripping device for the supporting wire, and atsingle fastening means for said clamp and said gripping device.

2. A trolley Wire hanger comprising a gripping device for the trolleywire and a gripping device for the supporting wire, the members. of oneof said grlpping devices being fulcrumed each upon the other, and asingle fastening means for both gripping devices.

3. A trolley wire hanger comprising a pair of gripping devices havinginterlaced teeth for attachment to a supporting wire and to a trolleywire, and a sing e fastening means for both of said gripping devices.

4. A trolley wire hanger comprising two rods having interlaced teethwhich are adapted' to engage a trolley wire and a supporting wire.

5. A trolley wire hanger comprising two rods having end portionsprovided with interlaced gripping teeth, the adjacent end.

portions being pivotally supported u on each other at the bases of theirinterlace teeth.

6. A trolley wire hanger comprising two members having end portionsprovided with interlaced gripping teeth, the adjacent end members beingpivoted upon each other at the base of the teeth, and asingle fasteningmeans for both members.

In witness whereof 1 have hereunto signed my name in the presence of thetwo sub-

